Ankara: Two Vice News journalists who were arrested in Turkey on terror-related charges have been released from jail, a Turkish government official said on Thursday.

Their assistant will remain jailed pending the conclusion of an investigation.

The two British journalists, correspondent Jake Hanrahan and cameraman Philip Pendlebury, were detained last week in Diyarbakir, the main city in Turkey's mostly Kurdish southeast, after filming in a neighborhood where Kurdish youths frequently clash with Turkish security forces.

Their Turkey-based assistant and translator was also detained.

The government official told The Associated Press that Hanrahan and Pendlebury were freed today. He did not know if they would be allowed to leave Turkey or were required to remain in the country pending trial.

A lawyer representing the journalists could not immediately be reached for comment.

The official spoke on condition of anonymity in line with Turkish government rules that bar government officials from speaking to journalists without prior authorization.

The news of their release came a day after the journalists were transferred to a high-security prison in Adana more than 500 kilometres away from their lawyers and the courthouse in Diyarbakir where they face trial.